Board to board connector

Abstract

The present invention is to provide a board to board connector, which comprises an insulative housing, a plurality of electrical terminals and a pair of fastening members. The insulative housing has a plurality of terminal chambers which pass from the bottom face through the top face of the base portion thereof for accommodating the electrical terminals. Each terminal includes a contact portion, a fixing portion and a two-way multi-layer U-shaped spring portion connected therebetween. The spring portion has perfect elasticity, and the contact portion is formed with a stopping portion at the end connecting the spring portion, and on the other end forming an abutting portion, which could match with the insulative housing effectively. The fastening members are disposed in the wide slots on two side convex portions of the insulative housing to connect with the PCB to achieve signal transmission.

1. A board to board connector, comprising an insulative housing, a plurality of electrical terminals and a pair of fastening members, wherein said insulative housing is disposed with a plurality of terminal chambers which each passes from a bottom face through a top face thereof for accommodating each of said electrical terminals, each electrical terminal includes a contact portion, a fixing portion and a two-way multi-layer U-shaped spring portion connected therebetween, said fastening members each is secured on either side of said insulative housing and mounted on a PCB to achieve signal transmission,
 wherein each terminal chamber is formed with a guarding arm on two sides of a top portion thereof, and a wide slot for inserting said fastening member is disposed on either side of said insulative housing; said contact portion of each electrical terminal is extended outward a stopping portion at an end thereof connecting said spring portion, and an abutting portion forming on an other end thereof; said fixing portion having a plurality of interfering portions each engaging with a wall of said terminal chamber. 
 
   
   
     2. The board to board connector of  claim 1 , wherein said fastening members each is formed as of a “T” shape structure, and has an oblique clasping point on said fastening member engaging with said wide slot closely. 
   
   
     3. A board to board connector, comprising an insulative housing, a plurality of electrical terminals and a pair of fastening members, wherein said insulative housing includes a plurality of narrow partition terminal chambers, each chamber having a large bottom opening communicating with a small top opening for accommodating each of said electrical terminals, each electrical terminal includes a top C-shaped contact portion, a sheet-shaped bottom fixing portion and a spring portion having a multi-layer horizontal and continuous U-shaped winding portion connected integrally between the contact portion and the fixing portion, the top opening only has the top C-shaped contact portion projected out thereof to contact with an other board connector, said fastening members each is secured on either side of said insulative housing and mounted on a PCB to achieve signal transmission, wherein each terminal chamber is formed with a guarding arm on two sides of the top opening thereof, and a wide slot for inserting said fastening member is disposed on either side of said insulative housing; said contact portion of each electrical terminal is extended outward a stopping portion at an end thereof connecting said spring portion, and an abutting portion forming on an other end thereof; said fixing portion having a plurality of interfering portions each engaging with a wall of said terminal chamber. 
   
   
     4. The board to board connector according to  claim 3 , wherein said fastening members each is formed as of a “T” shape structure, and has an oblique clasping point on an upper middle of said fastening member engaging with said wide slot closely. 
   
   
     5. The board to board connector according to  claim 3 , wherein the abutting portion is formed at a mouth of the C-shaped contact portion and the stopping portion is opposite to the abutting portion, each portion is abutting against the respective guarding arm on the top portion of the terminal chamber.